Published March 1991 | Version v1
Journal article Metadata-only

Microlensing in the Q0957 + 561 gravitational mirage

Creators

  • 1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)

Description

Analysis of the 10 yr record from monitoring the continuum brightness of Q0957 + 561 A, B shows a systematic increase of the B relative to the A component. The B brightness has leveled off in the last 2 yr at a value 32 percent higher than would be predicted from the ratio of Mg II 2798 A emission line strengths. This is taken to be the signature of microlensing by a star or stars in the lens galaxy. 11 refs

Additional details

Publishing Information

Journal Title
Astronomical Journal
Journal Volume
101
Series
Astron. J.
Journal Page Range
813-817
ISSN
0004-6256
CODEN
ANJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22053417
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ACCRETION DISKS; BRIGHTNESS; COSMIC GASES; EMISSION SPECTRA; GRAVITATION; GRAVITATIONAL LENSES; INTERSTELLAR SPACE; MASS SPECTRA; QUASARS
Descriptors DEC
COSMIC RADIO SOURCES; FLUIDS; GASES; LENSES; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPACE; SPECTRA